MFC r295079:

Fix the type for hw.ncpu, so sysctlbyname doesn't consistently fail on
64-bit architectures where sizeof(int) != sizeof(size_t).

PR: 206758

MFC r264617:

Fix releasing the lock in the parent atrun process after the queue
directory has been processed. Otherwise, a long-running child process
caused other atrun invocations to stall unnecessarily.

Submitted by: J.R. Oldroyd jr at opal.com

MFC r264617:

Fix releasing the lock in the parent atrun process after the queue
directory has been processed. Otherwise, a long-running child process
caused other atrun invocations to stall unnecessarily.

Submitted by: J.R. Oldroyd jr at opal.com